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Global stocks and c...
Global stocks and capacity of mineral-associated soil organic carbon
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- Georgiou, Katerina (författare)
- Stanford University,Lawrence Livermore National Laboratory
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- Jackson, Robert B. (författare)
- Stanford University
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- Vindušková, Olga (författare)
- University of Antwerp
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- Abramoff, Rose Z. (författare)
- Oak Ridge National Laboratory,Laboratoire des Sciences du Climat et de l'Environnement
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- Ahlström, Anders (författare)
- Lund University,Lunds universitet,BECC: Biodiversity and Ecosystem services in a Changing Climate,Centrum för miljö- och klimatvetenskap (CEC),Naturvetenskapliga fakulteten,MERGE: ModElling the Regional and Global Earth system,Institutionen för naturgeografi och ekosystemvetenskap,Centre for Environmental and Climate Science (CEC),Faculty of Science,Dept of Physical Geography and Ecosystem Science
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- Feng, Wenting (författare)
- Chinese Academy of Agricultural Sciences
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- Harden, Jennifer W. (författare)
- United States Geological Survey Western Region,Stanford University
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- Pellegrini, Adam F.A. (författare)
- University of Cambridge
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- Polley, H. Wayne (författare)
- United States Department of Agriculture (USDA)
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- Soong, Jennifer L. (författare)
- Colorado State University
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- Riley, William J. (författare)
- Lawrence Berkeley National Laboratory
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- Torn, Margaret S. (författare)
- University of California, Berkeley,Lawrence Berkeley National Laboratory
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(creator_code:org_t)
- 2022-07-01
- 2022
- Engelska.
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Ingår i: Nature Communications. - : Springer Science and Business Media LLC. - 2041-1723. ; 13:1
- Relaterad länk:
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http://dx.doi.org/10... (free)
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Soil is the largest terrestrial reservoir of organic carbon and is central for climate change mitigation and carbon-climate feedbacks. Chemical and physical associations of soil carbon with minerals play a critical role in carbon storage, but the amount and global capacity for storage in this form remain unquantified. Here, we produce spatially-resolved global estimates of mineral-associated organic carbon stocks and carbon-storage capacity by analyzing 1144 globally-distributed soil profiles. We show that current stocks total 899 Pg C to a depth of 1 m in non-permafrost mineral soils. Although this constitutes 66% and 70% of soil carbon in surface and deeper layers, respectively, it is only 42% and 21% of the mineralogical capacity. Regions under agricultural management and deeper soil layers show the largest undersaturation of mineral-associated carbon. Critically, the degree of undersaturation indicates sequestration efficiency over years to decades. We show that, across 103 carbon-accrual measurements spanning management interventions globally, soils furthest from their mineralogical capacity are more effective at accruing carbon; sequestration rates average 3-times higher in soils at one tenth of their capacity compared to soils at one half of their capacity. Our findings provide insights into the world’s soils, their capacity to store carbon, and priority regions and actions for soil carbon management.
Ämnesord
- LANTBRUKSVETENSKAPER -- Lantbruksvetenskap, skogsbruk och fiske -- Markvetenskap (hsv//swe)
- AGRICULTURAL SCIENCES -- Agriculture, Forestry and Fisheries -- Soil Science (hsv//eng)
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Georgiou, Kateri ...
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Jackson, Robert ...
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Vindušková, Olga
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Abramoff, Rose Z ...
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Ahlström, Anders
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Feng, Wenting
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visa fler...
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Harden, Jennifer ...
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Pellegrini, Adam ...
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Polley, H. Wayne
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Soong, Jennifer ...
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Riley, William J ...
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Torn, Margaret S ...
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